// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_WM_CORE_DEFAULT_SCREEN_POSITION_CLIENT_H_
#define UI_WM_CORE_DEFAULT_SCREEN_POSITION_CLIENT_H_

#include "base/macros.h"
#include "ui/aura/client/screen_position_client.h"
#include "ui/wm/wm_export.h"

namespace wm {

// Client that always offsets by the toplevel RootWindow of the passed
// in child NativeWidgetAura.
class WM_EXPORT DefaultScreenPositionClient
    : public aura::client::ScreenPositionClient {
public:
    DefaultScreenPositionClient();
    ~DefaultScreenPositionClient() override;

    // aura::client::ScreenPositionClient overrides:
    void ConvertPointToScreen(const aura::Window* window,
        gfx::Point* point) override;
    void ConvertPointFromScreen(const aura::Window* window,
        gfx::Point* point) override;
    void ConvertHostPointToScreen(aura::Window* window,
        gfx::Point* point) override;
    void SetBounds(aura::Window* window,
        const gfx::Rect& bounds,
        const gfx::Display& display) override;

protected:
    // Returns the origin of the host platform-window in system pixel coordinates.
    gfx::Point GetOriginInScreen(const aura::Window* root_window);

private:
    DISALLOW_COPY_AND_ASSIGN(DefaultScreenPositionClient);
};

} // namespace wm

#endif // UI_WM_CORE_DEFAULT_SCREEN_POSITION_CLIENT_H_
